The Heater,aircraft Engine Maintenan, cataloged under National Stock Number 4920-01-149-2643, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-149-2643 |
| Primary Part Number | 23006347 |
| Item Name | Heater,aircraft Engine Maintenan |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Reference Data and Literature | T.O. 2J-TF41-4 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 23006347 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
NSN 4920-01-149-2643 is a Heater,aircraft Engine Maintenan, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-149-2643 has 1 manufacturer part number on file: 23006347 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 23006347: Reference Data and Literature: T.O. 2J-TF41-4; Special Features: C/O A HEATER ASSY AND A BLANKET ASSY,RATED AT 2500 W,120 V,60 HZ; HEATER ASSY COMPRISED OF THERMAL HEATER,TWO SETS OF STAINLESS STEEL HOOKS,HANGERS,LOOPS, AND SPRINGS; 80.880 IN. LG,ALSO PLUG; BLANKET ASSY COMPRISED OF THERMAL SILICONE COVERED FIBERGLASS BLANKET,TWO SETS OF STAINLESS STEEL HOOKS,HANGERS,LOOPS,SPRINGS,80.880 IN. LG V; Part Name Assigned by Controlling Agency: HEATER,COOLING AIR MANIFOLD AND LINER AS; End Item Identification: TF41A1 ENGINE. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.